JLG G12-55A Operator Manual - Manual (Page 138)

Section 7 - Lubrication and Maintenance
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Engine Cooling System
A. Engine Coolant Level Check
1. Perform “Shut-Down Procedure” on page 4-4.
2. Open the engine cover.
3. Check coolant level in surge tank (1). When coolant is hot, bottle should be 1/2
to 3/4 full. When coolant is cool, bottle should be 1/4 to 1/2 full.
4. If coolant is low, allow fluid to cool.
5. Remove surge tank cap (2) and add coolant as required.
6. Replace overflow bottle cap.
7. Close and secure the engine cover.
Note: When filling with coolant, the maximum fill rate is 2.5 gallon per minute
(9.5 liter per minute)
50
OW0980 OW1070
2
1
OY3030